A METHOD FOR INCREASING THE REACTIVITY OF LIGNIN, A RESIN COMPOSITION COMPRISING SAID LIGNIN AND USE OF SAID RESIN COMPOSITION

The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture...

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Bibliographische Detailangaben
Hauptverfasser:	ARESKOGH, DIMITRI, ZAFAR, ASHAR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NAILING OR STAPLING MACHINES IN GENERAL NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition. La présente invention concerne un procédé permettant d'augmenter la réactivité de la lignine, ledit procédé comprenant les étapes suivantes : la fourniture d'un mélange comprenant de la lignine et une solution alcaline dans lequel la concentration de la solution alcaline du mélange est entre 5 à 50 % en poids, le stockage dudit mélange pendant une période d'au moins 1 jour, moyennant quoi la réactivité de la lignine est augmentée. La présente invention concerne également une composition de résine comprenant ladite lignine et l'utilisation de ladite composition de résine.